Otto, when you have time, check the top of the carburetor for a black electric plug, that would make it an early computer assisted Q-Jet. Some vehicles had it, some not.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy